@interface _PSLastCommunicatedFeatures : NSObject + (int)bucketFromTimeInterval:(double)a0; + (id)featureValueFromTimeInterval:(double)a0; + (id)lastCommunicationFromCandidates:(id)a0 direction:(long long)a1 mechanisms:(id)a2 caches:(id)a3; + (id)lastInteractionFromCandidate:(id)a0 caches:(id)a1 direction:(long long)a2 mechanisms:(id)a3; + (id)recipientDetailsFromContact:(id)a0; + (double)timeIntervalSinceNowForInteraction:(id)a0; @end